Fluid handling – With means for separating solid material from the fluid – Planar strainer normal to flow path
Patent
1999-06-08
2000-10-17
Rivell, John
Fluid handling
With means for separating solid material from the fluid
Planar strainer normal to flow path
251 46, 251230, 251339, F16K 31385, F16K 3144
Patent
active
061316083
ABSTRACT:
A water flowrate control device, which includes a casing connected to water source means, a holder member mounted inside the casing, a pressure release element mounted in the holder member, a steel ball put in a stepped through hole in the pressure release element, a rubber cap mounted on the holder member and covered over the pressure release element and disposed in contact with an inside annular flange inside the casing to stop water passage, a bottom cap fastened to the casing at a bottom side to hold the holder member in place, a receptacle mounted in a tubular flange in the bottom cap, a movable element mounted in the receptacle and inserted into the stepped through hole at the pressure release element, and a spring member connected between the holder member and the movable element to push the movable element away from the steel ball, wherein when the receptacle is pushed upwards, the movable element is moved with the receptacle to push the steel ball upwards, for enabling water to flow out of the rubber cap so that the rubber cap is compressed by water pressure in the inside annular flange of the casing and released from the inside annular flange of the casing for enabling water to flow through water holes at the holder member and water holes at the bottom cap to the outside of the casing.
REFERENCES:
patent: 3652053 (1972-03-01), Poitras et al.
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patent: 4771985 (1988-09-01), Gross et al.
patent: 4840351 (1989-06-01), Lii
patent: 5573224 (1996-11-01), Kim
patent: 5651531 (1997-07-01), Lu
patent: 5704397 (1998-01-01), Lu
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